Abstract:
OBJECTIVES:The aim of our study was to determine the dimensions, morphology and anatomic variations of the left main coronary artery (LMCA) in normal participants, on multidetector computed tomography. BACKGROUND:Accurate imaging of LMCA dimensions and configuration is crucial to avoid misdiagnosis of LMCA disease. MATERIALS AND METHODS:Seventy morphologically normal LMCAs of 70 participants were carefully selected from among 600 consecutive coronary computed tomography angiography studies performed in our institute. LMCA cross-sectional diameters and areas were obtained at three points of each vessel: ostium, midvessel and distal. The length, cross-sectional shape, three-dimensional (3D) morphology and position of origin were studied. Influences of age, body weight, height and body surface area (BSA) on LMCA dimensions were evaluated. RESULTS:Different dimensions in each measured point of the LMCA were detected. Cross-sectional elliptic shape at ostium, mid-LMCA and distal LMCA was found in 66/70 (94%), 51/70 (73%) and 54/70 (77%) of the participants, respectively. On the basis of the 3D presentation, four types of LMCA were identified: biconcave-shape appearance (type 1), tapering morphology (type 2), combined morphology (type 3) and funnel-shape appearance (type 4). Fifty-two of the 70 participants had an LMCA orifice originating in the middle third of the aortic sinus, 15/70 in the posterior third and 3/70 in the anterior third. In men, significant correlation was found between LMCA cross-sectional area and body weight, height and BSA. In women, no correlation was found regarding body weight, height and BSA. CONCLUSION:LMCA is not a simple straight tube but usually has various anatomical configurations, variable dimensions and cross-sectional shapes. Ostial angulation is a normal variant usually associated with the posterior position of the LMCA orifice of origin in the aortic sinus.
journal_name
Coron Artery Disjournal_title
Coronary artery diseaseauthors
Zeina AR,Rosenschein U,Barmeir Edoi
10.1097/MCA.0b013e3282c1fd9fsubject
Has Abstractpub_date
2007-09-01 00:00:00pages
477-82issue
6eissn
0954-6928issn
1473-5830pii
00019501-200709000-00011journal_volume
18pub_type
杂志文章abstract:OBJECTIVE:Some plaques grow slowly in a linear manner, whereas others undergo a rapid phasic progression. However, the detailed in-vivo relationship between plaque characteristics and plaque progression pattern has not been reported. The current study aimed to investigate the plaque progression patterns with serial int...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000420
更新日期:2016-12-01 00:00:00
abstract:INTRODUCTION:We investigated the relationship between heart rate variability and preclinical carotid intima-media thickening, a putative index of atherosclerosis. METHODS:A sample of 350 men and women (mean age 56.8 years) selected for the presence or absence of untreated hypertension was assessed for heart rate varia...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e328011ac01
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Although smoking is a risk factor for coronary atherosclerosis, the age-related impact on lesion characteristics and plaque instability remains unclear. PATIENTS AND METHODS:In ADAPT-DES, 780 patients with 916 culprit lesions were evaluated by preprocedural grayscale and virtual histology-intravascular ultr...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0000000000000268
更新日期:2015-09-01 00:00:00
abstract::Potentially hazardous short ischemic episodes increase the tolerance of myocardium to ischemia paradoxically. This condition decreases the infarct area markedly caused by a longer duration of coronary occlusion. This phenomenon is known as 'ischemic preconditioning' and its powerful cardioprotective effect has been sh...
journal_title:Coronary artery disease
pub_type: 杂志文章,评审
doi:10.1097/00019501-200605000-00013
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:In this study, we examined the relationship between PAI-1 4G/5G polymorphism and patency of the infarct-related artery after thrombolysis in patients with ST-elevation myocardial infarction (STEMI). METHODS:Acute STEMI patients who received thrombolytic therapy within first 12 h were included in our study. ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e3283576a77
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Diabetic patients show an increased incidence of restenosis after coronary angioplasty than non-diabetic patients. This may be because of differences in the mechanism of lumen gain during coronary revascularization in this population cohort. DESIGN:This study analyses the mechanism of lumen gain during coro...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200208000-00003
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVE:To determine whether a quantitative measurement of peak systolic velocity (PSV) during dobutamine stress echocardiography (DSE) detects severe coronary artery disease (CAD) and predicts mortality in patients with end-stage renal disease. METHODS:One hundred and forty renal transplant candidates had DSE and c...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32832ac5eb
更新日期:2009-05-01 00:00:00
abstract:OBJECTIVE:We characterized the impact of the metabolic syndrome (MetS) and its components on cardiovascular adverse events in patients with symptomatic chronic multivessel coronary artery disease, which have been followed prospectively for 2 years. METHODS:Patients enrolled in the MASS II study were evaluated for each...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/MCA.0b013e328306aa8a
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:The aim of this study was to identify the prognostic predictors for the worse clinical outcomes after a successful chronic total occlusion (CTO) intervention with drug-eluting stents. PATIENTS AND RESULTS:A total of 2334 patients in the multicenter Korean CTO registry who underwent a successful CTO interven...
journal_title:Coronary artery disease
pub_type: 杂志文章,多中心研究
doi:10.1097/MCA.0000000000000498
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:We hypothesized that an increase in plasminogen activator inhibitor 1 (PAI-1) might reduce low-density lipoprotein (LDL) particle size in conjunction with triglyceride (TG) metabolism disorder, resulting in an increased risk of atherosclerotic cardiovascular disease (ASCVD). METHODS:This study was carried o...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000521
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:T-cell-mediated immune responses play important roles in the progression of atherosclerotic disease. Studies have linked various inflammatory biomarkers with the burden of coronary artery calcification, but the significance of T-cell-specific chemokines in coronary artery calcification has not been confirmed...
journal_title:Coronary artery disease
pub_type: 临床试验,杂志文章
doi:10.1097/MCA.0000000000000236
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND:Experimental and clinical studies have suggested that intracoronary infusion of bone marrow-derived stem/progenitor cells (BMC) may improve left ventricular function after acute myocardial infarction (AMI). We conducted a systematic review and meta-analysis to investigate the efficacy and safety of BMC thera...
journal_title:Coronary artery disease
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MCA.0b013e328300dbd3
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:The N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) is a sensitive indicator of hemodynamic stress and its increased level is associated with higher mortality in acute coronary syndrome (ACS) patients. Virtual histology-intravascular ultrasound (VH-IVUS) can provide quantitative information on plaque ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32832a196e
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:Platelet-derived growth factor (PDGF) is a potent mitogen for vascular smooth muscle cells and is implicated in the vascular response to injury and the pathogenesis of atherosclerosis. It is also a potent vasoconstrictor. METHODS:To examine whether acute myocardial ischemia increases the level of PDGF in th...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199305000-00007
更新日期:1993-05-01 00:00:00
abstract:INTRODUCTION:The primary end points of randomized clinical trials evaluating the outcome of therapeutic strategies for coronary artery disease (CAD) have included nonfatal acute myocardial infarction, the need for further revascularization, and overall mortality. Noncardiac causes of death may distort the interpretatio...
journal_title:Coronary artery disease
pub_type: 杂志文章,随机对照试验
doi:10.1097/MCA.0b013e32834f112a
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:Nitroglycerin (NTG) is known to increase the blood supply to the myocardium, and would thus increase the delivery of a perfusional tracer such as sestamibi (MIBI) to the tissue. The latter, in turn, would take up and concentrate the tracer to a greater extent than in basal conditions only if energy-dependent...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199612000-00002
更新日期:1996-12-01 00:00:00
abstract:OBJECTIVES:To evaluate the efficacy and safety of intracoronary administration of prourokinase via balloon catheter during primary percutaneous coronary interventions in patients with acute ST-segment elevation myocardial infarction. METHODS:Acute ST-segment elevation myocardial infarction patients underwent primary p...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000898
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:Considerable evidence suggests that thyroid dysfunction, especially hypothyroidism, may lead to coronary artery disease (CAD). The aim of this study is to investigate the effect of low serum levels of free triiodothyronine (FT3) on coronary artery calcification in outpatients with suspected CAD and the occurr...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000095
更新日期:2014-08-01 00:00:00
abstract:OBJECTIVE:Predictors of 30-day mortality may differ from predictors of mortality at 1 year among 30-day survivors of ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI). We aimed to evaluate the predictors of 30-day and 1-year mortality in unselected patients with ST...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32832e5c4c
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Coronary artery ectasia is defined as localized or diffuse dilation of the coronary arteries exceeding the 1.5-fold of normal adjacent segment. Scarce data are available about the role of inflammation in coronary artery ectasia. In the present study, we aimed to evaluate the expression of CD11b and CD45 adhe...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32801104d4
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:Elderly patients with ischaemic heart disease are often treated more conservatively and for longer than younger patients, but this strategy may result in subsequent invasive intervention of more advanced and higher risk coronary disease. METHODS:We performed a retrospective analysis of 109 patients aged > o...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199711000-00006
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Coronary artery bypass grafting has been performed for a long period utilizing saphenous vein grafts, the fate of which might be crucial to prognosis following the operation. Metabolic syndrome, on the other hand, has become an increasingly important part of cardiovascular practice. We examined whether there...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-200602000-00007
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVES:This cross-sectional study aimed to investigate the long-term quality of life (QOL) influencing of patients following a percutaneous coronary intervention (PCI) as well as its influencing factors. PATIENTS AND METHODS:From June 2013 to April 2014, 428 PCI patients were enrolled in this questionnaire survey....
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000712
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Measurement of antibodies to oxidized low-density lipoprotein (AB-oxLDL) has been proposed as a way of identifying individuals at risk for cardiovascular disease beyond the determination of LDL cholesterol (LDL-c) alone. While this hypothesis is appealing, evidence that AB-oxLDL is a risk factor independent ...
journal_title:Coronary artery disease
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00019501-200304000-00009
更新日期:2003-04-01 00:00:00
abstract:BACKGROUND:The ability of 64-slice computed tomography (CT) angiography to differentiate plaque types remains unclear. We evaluated whether the density of noncalcified coronary plaques by 64-slice CT angiography correlates with plaque components assessed by integrated backscatter intravascular ultrasound (IB-IVUS). ME...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0b013e32833578f4
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVE:Electrocardiographic indices like maximum P-wave duration (P(max)) and P-wave dispersion (PD) can be used to detect patients with atrial conduction disorders, myocardial ischemia and those at risk for atrial fibrillation. Considering the diurnal variation of ischemia in patients with significant coronary lesi...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/01.mca.0000236284.64059.be
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:Thrombomodulin (TM) -33G/A and Ala455Val polymorphisms have been indicated to be correlated with the risk of coronary artery disease (CAD), but study results are still inclusive. Thus, a meta-analysis was carried out. MATERIALS AND METHODS:Databases including PubMed, Embase, CNKI, and Web of Science (ISI) w...
journal_title:Coronary artery disease
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MCA.0000000000000161
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Spinal cord stimulation (SCS) is effective in the treatment of severe coronary artery disease (CAD) unresponsive to anti-anginal medication or revascularization procedures. However, there is still concern about its safety. OBJECTIVE:To investigate the reliability, morbidity, and mortality aspects of SCS in ...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/00019501-199701000-00005
更新日期:1997-01-01 00:00:00
abstract:AIM:To determine how hypertension affects the left ventricular diastolic function of patients with effort angina. METHODS:We performed radionuclide ventriculography in 14 patients with isolated stenosis of the left anterior descending coronary artery and in seven healthy volunteers. RESULTS:Neither global nor regiona...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract:BACKGROUND:ABO blood groups have been associated with venous thromboembolism and arterial thrombosis. Although platelets play key roles in thrombogenesis, the relation between ABO groups and platelets is not well known and was investigated in this study. PATIENTS AND METHODS:ABO blood type information was retrospectiv...
journal_title:Coronary artery disease
pub_type: 杂志文章
doi:10.1097/MCA.0000000000000676
更新日期:2019-01-01 00:00:00